218c2b953b
Detect calls that do not target a function's entrypoint (i.e, calls to runtime.duffzero and runtime.duffcopy) and instead step into them directly. StepInto sets a breakpoint past the called function's prologue and expects that continue will hit that breakpoint, but because the call is into the interior of the function (well past the prologue) this fails. Fixes #573
29 lines
607 B
Go
29 lines
607 B
Go
package main
|
|
|
|
// A debugger test.
|
|
// dlv debug
|
|
// b main.foo
|
|
// c
|
|
// s
|
|
// s
|
|
// Expect to be stopped in fmt.Printf or runtime.duffzero
|
|
// In bug, s #2 runs to the process exit because the call
|
|
// to duffzero enters duffzero well after the nominal entry
|
|
// and skips the temporary breakpoint placed by StepZero().
|
|
import "fmt"
|
|
|
|
var v int = 99
|
|
|
|
func foo(x, y int) (z int) { // c stops here
|
|
fmt.Printf("x=%d, y=%d, z=%d\n", x, y, z) // s #1 stops here; s #2 is supposed to stop in Printf or duffzero.
|
|
z = x + y
|
|
return
|
|
}
|
|
|
|
func main() {
|
|
x := v
|
|
y := x * x
|
|
z := foo(x, y)
|
|
fmt.Printf("z=%d\n", z)
|
|
}
|